<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>添加商品</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 提示区域 -->
      <el-alert title="添加商品信息" type="info" center show-icon :closable="false"></el-alert>
      <!-- 步骤条区域 -->
      <el-steps :space="200" :active="activeIndex -0" finish-status="success" align-center>
        <el-step title="基本信息"></el-step>
        <el-step title="商品参数"></el-step>
        <el-step title="商品属性"></el-step>
        <el-step title="商品图片"></el-step>
        <el-step title="商品内容"></el-step>
        <el-step title="完成"></el-step>
      </el-steps>
      <!-- tab栏区域 -->
      <el-form
        :model="addForm"
        :rules="addRuleForm"
        ref="addFormRef"
        label-width="100px"
        label-position="top"
      >
        <el-tabs
          :tab-position="'left'"
          v-model="activeIndex"
          :before-leave="beforeTabLeave"
          @tab-click="tabClick"
        >
          <el-tab-pane label="基本信息" name="0">
            <el-form-item label="商品名称" prop="goods_name">
              <el-input v-model="addForm.goods_name"></el-input>
            </el-form-item>
            <el-form-item label="商品价格" prop="goods_price">
              <el-input v-model="addForm.goods_price" type="number"></el-input>
            </el-form-item>
            <el-form-item label="商品重量" prop="goods_weight">
              <el-input v-model="addForm.goods_weight" type="number"></el-input>
            </el-form-item>
            <el-form-item label="商品数量" prop="goods_number">
              <el-input v-model="addForm.goods_number" type="number"></el-input>
            </el-form-item>
            <el-form-item label="商品分类" prop="goods_cat">
              <el-cascader
                v-model="addForm.goods_cat"
                :options="cateLlist"
                :props="{checkStrictly:true, expandTrigger: 'hover', value: 'cat_id',
        label: 'cat_name',
        children: 'children'}"
                @change="parentCateListChange"
                clearable
              ></el-cascader>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品参数" name="1">
            <!-- 渲染表单item项 -->
            <el-form-item :label="item.attr_name" v-for="item in manyTableData" :key="item.attr_id">
              <!-- 复选框组 -->
              <el-checkbox-group v-model="item.attr_vals">
                <el-checkbox :label="cb" v-for="(cb,i) in item.attr_vals" :key="i" border></el-checkbox>
              </el-checkbox-group>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品属性" name="2">
            <el-form-item :label="item.attr_name" v-for="item in onlyTableData" :key="item.attr_id">
              <el-input v-model="item.attr_vals"></el-input>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品图片" name="3">
            <el-upload
              action="https://vueapi.wrbird.cn/api/private/v1/upload"
              :on-remove="handleRemove"
              :on-preview="handlePreview"
              list-type="picture"
              :headers="headerObj"
              :on-success="handleSuccess"
            >
              <el-button size="small" type="primary">点击上传</el-button>
            </el-upload>
          </el-tab-pane>
          <el-tab-pane label="商品内容" name="4">
            <quill-editor editorv-model="addForm.goods_introduce"></quill-editor>
            <el-button type="primary" class="btnAdd" @click="add">添加商品</el-button>
          </el-tab-pane>
        </el-tabs>
      </el-form>
    </el-card>

    <!-- 图片预览  -->
    <el-dialog title="图片预览" :visible.sync="PreviewVisible" width="50%">
      <img :src="Previewpath" alt class="previewClass" />
    </el-dialog>
    <!-- <img src="../../assets/logo.png"> -->
  </div>
</template>
<script>
import _ from "lodash";
export default {
  data() {
    return {
      activeIndex: "0",
      //   添加表单的数据对象
      addForm: {
        goods_name: "",
        goods_price: 12,
        goods_weight: 12,
        goods_number: 12,
        goods_cat: [],
        pics: [],
        goods_introduce: "",
        attrs: [],
      },
      addRuleForm: {
        goods_name: [
          { required: true, message: "请输入商品名称", trigger: "blur" },
        ],
        goods_price: [
          { required: true, message: "请输入商品价格", trigger: "blur" },
        ],
        goods_weight: [
          { required: true, message: "请输入商品重量", trigger: "blur" },
        ],
        goods_number: [
          { required: true, message: "请输入商品数量", trigger: "blur" },
        ],
        goods_cat: [
          { required: true, message: "请选择商品分类", trigger: "blur" },
        ],
      },
      cateLlist: [],
      //   保存动态参数
      manyTableData: [],
      //保存静态属性
      onlyTableData: [],
      //   图片请求头
      headerObj: {
        Authorization: window.sessionStorage.getItem("token"),
      },
      Previewpath: "",
      PreviewVisible: false,
    };
  },
  created() {
    this.getCateList();
  },
  methods: {
    //获取商品分类数据
    async getCateList() {
      const { data: res } = await this.$http.get("categories");
      if (res.meta.status !== 200)
        return this.$message.error("获取商品分类数据失败");
      this.cateLlist = res.data;
    },
    // 级联选择器选中触发
    parentCateListChange() {
      if (this.addForm.goods_cat.length !== 3) {
        this.addForm.goods_cat = [];
      }
    },
    // 标签页的切换
    beforeTabLeave(activeName, oddName) {
      //   console.log(activeName, oddName);
      if (oddName === "0" && this.addForm.goods_cat.length !== 3) {
        // this.addForm.goods_cat = [];
        this.$message.error("请先选择商品分类");
        return false;
      }
    },
    async tabClick() {
      // console.log(this.activeIndex)
      if (this.activeIndex === "1") {
        const { data: res } = await this.$http.get(
          `categories/${this.cateId}/attributes`,
          {
            params: { sel: "many" },
          }
        );
        if (res.meta.status !== 200)
          return this.$message.error("获取动态参数失败");

        res.data.forEach((item) => {
          item.attr_vals =
            item.attr_vals.length === 0 ? [] : item.attr_vals.split(" ");
        });
        this.manyTableData = res.data;
        console.log(this.manyTableData);
      } else if (this.activeIndex === "2") {
        const { data: res } = await this.$http.get(
          `categories/${this.cateId}/attributes`,
          {
            params: { sel: "only" },
          }
        );
        if (res.meta.status !== 200)
          return this.$message.error("获取静态属性失败");
        this.onlyTableData = res.data;
      } else if (this.activeIndex === "3") {
      } else if (this.activeIndex === "4") {
      }
    },
    // 图片预览
    handlePreview(file) {
      // console.log(file);
      const host='https://vueapi.wrbird.cn/'
      this.Previewpath = host+file.response.data.tmp_path;
      console.log(this.Previewpath);
      this.PreviewVisible = true;
    },
    // 移除图片
    handleRemove(file) {
      const filepath = file.response.data.tmp_path;
      const i = this.addForm.pics.findIndex((x) => {
        x.pic === filepath;
      });
      this.addForm.pics.splice(i, 1);
      //   console.log(this.addForm);
    },
    //图片上传成功
    handleSuccess(res) {
      //   console.log(res);
      const pincInfo = { pics: res.data.tmp_path };

      this.addForm.pics.push(pincInfo);
      //   console.log(this.addForm.pics);
    },
    add() {
      this.$refs.addFormRef.validate(async (vaild) => {
        // console.log(vaild);
        if (!vaild) return this.$message.error("请填写必要的商品信息");

        const form = _.cloneDeep(this.addForm);
        form.goods_cat = form.goods_cat.join(",");

        this.manyTableData.forEach((item) => {
          const newInfo = {
            attr_id: item.attr_id,
            attr_value: item.attr_vals.join(),
          };

          this.addForm.attrs.push(newInfo);
        });

        this.onlyTableData.forEach((item) => {
          const newInfo = { attr_id: item.attr_id, attr_value: item.attr_vals };

          this.addForm.attrs.push(newInfo);
        });
        form.attrs = this.addForm.attrs;
        console.log(form);
        const { data: res } = await this.$http.post("goods", form);
        console.log(res);
        if (res.meta.status !== 201) return this.$message.error("添加商品失败");
        this.$message.success("添加商品成功");
        this.$router.push("/goods");
      });
    },
  },
  computed: {
    cateId() {
      if (this.addForm.goods_cat.length === 3) {
        return this.addForm.goods_cat[2];
      }
      return null;
    },
  },
};
</script>
<style lang="less" scoped>
.el-checkbox {
  margin: 0 5px 0 0 !important;
}
.btnAdd {
  margin-top: 10px;
}
.previewClass{
  width: 100%;
}
</style>